United Kingdom, Aug. 5 -- Ozzy Osbourne tried to trademark his Prince of Darkness nickname before he died.

The 76-year-old rocker passed away at his home in England on July 22, just weeks after his final Black Sabbath gig, and he filed documents to trademark his nickname on June 13.

According to The Sun newspaper, his UK-based firm Monowise sent the application to the United States Patent and Trademark Office for "entertainment services, namely providing non-downloadable pre-recorded music via a website".

The company also sought trademark protection to sell clothes, games and accessories.

A ruling has yet to be made, although a similar claim was passed previously in the UK.

Meanwhile, it has been revealed that tributes left for Ozzy ...